.tooltip {
    position: relative;
    display: inline-block;
    
}

.tooltip .tooltiptext {
    visibility: hidden;
    width: calc(100% + 10px);
    background-color: black;
    min-width: 40px;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    bottom: 20px;
    /* 定位 */
    position: absolute;
    z-index: 1;
}

#onlywan{
    z-index: 999;
    font-size: 10px;

}

.tooltip span{
    font-size: 10px;
    
}

.tooltip:hover .tooltiptext {
    visibility: visible;
}